You may have charged the battery, but it no longer holds a charge. If this is the case, you will need to acquire a new battery. (One may be purchased here). Once you have a new battery, refer to Motorola V276 Battery Replacement

Ask others who have the same service provider as you whether they experience the same reception problems as you (and in the same areas). If they are experiencing the same thing, reception for your service provider may simply be low in your area. Contact your provider and ask them if they have lower representation (i.e. less cell sites) around where you use your phone.

There may be places you go where reception for your phone drops significantly. Try to pinpoint where it is that you lose reception and contact your service/phone provider. They may be able to explain your geographically-related loss of service.

Resources

Repairability

Stay in the loop

It's time to speak out for your right to repair

We have a chance to guarantee our right to repair electronic
equipment—like smartphones, computers, and even farm equipment. This is a once-in-a-generation
chance to protect local repair jobs—the corner mom-and-pop repair shops that
keep getting squeezed out by manufacturers.

Join the cause and tell your state representative to support Right to Repair. Tell them you believe repair should be fair, affordable, and accessible. Stand up for your right to repair!